Authors : M.K.S. Sankalpana; S.C. Diddeniya; Dr. C. Ranaweera

Volume/Issue : Volume 9 - 2024, Issue 6 - June

Google Scholar : https://tinyurl.com/26jecety

Scribd : https://tinyurl.com/3sw7mtrz

DOI : https://doi.org/10.38124/ijisrt/IJISRT24JUN212

Abstract : Medium Voltage power distribution network in Sri Lanka accommodates different types of reinforced concrete and pre stressed poles. Sri Lanka is an environmentally diversified country of having a wide range of environmental conditions such as muddy, salty, hard soil, extreme windy, mountain terrain, etc. Hence, the selection of the optimum pole for a typical application in a particular environmental condition is in question due to forgone technical and economic advantage of different pole types on each other. There was a necessity to develop a comprehensive method in order to select the most suitable pole type for a particular location. This effort is to develop an algorithm for selecting the best matched pole for typical site condition where user is allowed to select all the input parameters such as soil type, conductor, line profile, deviation angle, possibility of fixing stays or struts, provisions on mounting different transformer types, cross arm, insulator type, DDLO etc. This paper describes in detail the comprehensive algorithm, theory and assumptions used in formulating a pole optimization scheme in the Design Unit of the Ceylon Electricity Board.

Keywords : Power Distribution, Medium Voltage Network, Pole Stability, Transformer Mounting, Soil Bearing Capacity, Overturning Safety Factor.

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